diff options
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/nolibc/arch-s390.h | 8 | ||||
| -rw-r--r-- | tools/include/nolibc/sys.h | 18 |
2 files changed, 13 insertions, 13 deletions
diff --git a/tools/include/nolibc/arch-s390.h b/tools/include/nolibc/arch-s390.h index 5bee6ecbde0a..904281e95f99 100644 --- a/tools/include/nolibc/arch-s390.h +++ b/tools/include/nolibc/arch-s390.h @@ -8,6 +8,7 @@ #include "types.h" +#include <linux/sched.h> #include <linux/signal.h> #include <linux/unistd.h> @@ -189,4 +190,11 @@ pid_t sys_fork(void) } #define sys_fork sys_fork +static __attribute__((unused)) +pid_t sys_vfork(void) +{ + return my_syscall5(__NR_clone, 0, CLONE_VM | CLONE_VFORK | SIGCHLD, 0, 0, 0); +} +#define sys_vfork sys_vfork + #endif /* _NOLIBC_ARCH_S390_H */ diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h index 847af1ccbdc9..403ee9ce8389 100644 --- a/tools/include/nolibc/sys.h +++ b/tools/include/nolibc/sys.h @@ -22,7 +22,7 @@ #include <linux/time.h> #include <linux/auxvec.h> #include <linux/fcntl.h> /* for O_* and AT_* */ -#include <linux/sched.h> /* for clone_args */ +#include <linux/sched.h> /* for CLONE_* */ #include <linux/stat.h> /* for statx() */ #include "errno.h" @@ -363,19 +363,11 @@ pid_t fork(void) static __attribute__((unused)) pid_t sys_vfork(void) { -#if defined(__NR_vfork) +#if defined(__NR_clone) + /* See the note in sys_fork(). */ + return my_syscall5(__NR_clone, CLONE_VM | CLONE_VFORK | SIGCHLD, 0, 0, 0, 0); +#elif defined(__NR_vfork) return my_syscall0(__NR_vfork); -#else - /* - * clone() could be used but has different argument orders per - * architecture. - */ - struct clone_args args = { - .flags = CLONE_VM | CLONE_VFORK, - .exit_signal = SIGCHLD, - }; - - return my_syscall2(__NR_clone3, &args, sizeof(args)); #endif } #endif |